嵌入式共固化耐高温阻尼复合材料制备及老化前后力学性能  

Manufacturing process and mechanical performance before and after aging treatment of embedded co-cured high-temperature-resistance damping composite

作　　者：张乾[1] 梁森[1] 梁天锡[2] 

机构地区：[1]青岛理工大学机械工程学院,青岛266033 [2]中国工程物理研究院,绵阳621900

出　　处：《航空学报》2015年第7期2468-2474,共7页Acta Aeronautica et Astronautica Sinica

基　　金：国家自然科学基金(51375248);中国工程物理研究院"仪表板的设计与开发"项目~~

摘　　要：嵌入式共固化阻尼复合材料的耐高温性能对其在极端环境下的应用至关重要。本文在正交实验的基础上提出一种具有优异耐高温性能的黏弹性材料组分,探索使用四氢呋喃溶剂将其溶解成胶浆,研究采用刷涂工艺在复合材料预浸料(T700/QY260)上制成阻尼薄膜,并与不带阻尼薄膜的复合材料预浸料一起根据设计要求铺设,利用预浸料的固化工艺曲线在热压罐中共固化成型,最终制成一种新型嵌入式共固化耐高温阻尼复合材料。通过测试其阻尼层与复合材料预浸料在老化前后的常温层间结合性能,验证这种复合材料的耐高温性能。结果表明,材料具有很好的耐高温性能,这就使嵌入式共固化大阻尼复合材料进入特种环境下的应用领域成为可能。The high-temperature-resistance property of the embedded co-cured damping composite is very important to its application in special environment. A new high-temperature-resistance ingredient of viscoelastic damping material is found through orthogonal experimental method to be co-cured with high-temperature-resistance composite preperg （T700/QY260） Damping material is dissolved in tetrahydrofuran to form viscoelastic material solution and then it is used to produce damping membrane on the composite preperg by brush coating process. After the composite preperg with damping membrane is laid according to the design requirement, the autoclave is employed to make the embedded co-cured high-temperature-resistance damping composite specimens. The interlaminar bonding force between the damping layer and composite is tested before and after high-temperature aging to study the high-temperature resistant performance of this embedded co-cured damping composite. The results show that the composite material has good high-temperature-resistance performance and it would provide a possibility for the wide application of embedded co-cured high-temperature-resistance damping composite.

关 键 词：阻尼 复合材料 嵌入式 耐高温性 粘结 

分 类 号：V414.8[航空宇航科学与技术—航空宇航推进理论与工程] TB332[一般工业技术—材料科学与工程]